Come dance in the mud with us, September 2014!
We are pleased to announce that the details are finally settled for our first natural building workshop in our new home location of Berea, Kentucky — this September, we’re hosting a Cob Building Workshop at Forest Retreats homestead!
The latest look of Gobcobatron
Our work on updating the interior of our cob house, Gobcobatron is finally complete! I think this latest design might be my favorite so far… although of course it’s so exciting just because it is “new”, too. We changed things around to make it an even more appropriate and better place to stay for renters and people who come stay for weekends. I think they are in for a treat…
I finally have some promising moisture news to report. After removing the original earthen floor in Gobcobatron, we put down a 6 mil poly liner, and our 1.5″ of rigid foam insulation.
The new floor is not yet fully in, but our hygrometer is reading lower than ever humidity levels! Previously, it was rare for the humidity to dip lower than 75-80% (yikes, yes). 65% was welcome when there was a strong breeze through the house.
Well, now that same hygrometer is reading more around 50% humidity, a much more acceptable level of moisture. Wow! I’m trying to not get too-too excited yet, because of course the floor is not yet complete, but I do believe this is an excellent sign for positive change. It suggests that moisture was indeed rising up through the gravel in the floor.
More on that later!
Carving out the window sill for a retrofit
One of the great things about cob is how immensely sculptable the material is. But the sculpture doesn’t stop once the walls are dry. You can always come back to a wall with a shovel, pickaxe, machete, or other sturdy tool and do retrofitting fairly easily. I recently decided to redo some of the window sills in the house that were straight cob, and instead install some wood boards to make them more functional.
The new front door (that will soon receive a new coat of paint to cover up that blase beige)
The cob walls of the mud room addition are finally complete and all that remains now is to plaster the walls once the cob has fully dried. I’m very happy with how the addition process went and the end result. We’ve now got a great (tiny) little space for storing shoes and hanging coats, and it gives us an extra bit of buffer against exterior temperatures. Here’s a few pictures of the new front entryway of the house…
Check out our Natural Building Workshops outside Berea, KY. We offer courses in cob and straw bale building, timber framing, and more.
When designing my cob house, it was an important goal to keep my building costs very low and to obtain as many building materials as locally as possible. Natural materials were my first priority, and recycled building supplies were preferred over new materials. Few materials were purchased new, and about as few are synthetic.
In this very detailed entry, Recipe for Building a Cob House, you can learn what it took to build my cob house for about $3000 in material costs. You’ll also learn exactly how much cob I made (all by foot!), and specific amounts of material that went into the construction. Read More
The past week or so has been quite eventful. There’s been mostly positive progress, but some negative, too.
With Karen’s and my dad’s help, I completed cobbing. The walls are finally done! In just a few days, the gap between the walls and the roof was closed. It was very satisfying to see the final line of the wall meet the decking of the roof. It was awkward work having to stuff the small spaces, but it wasn’t too bad…
194.5 batches of cob stomped by foot and applied by hand and you get:
Yesterday afternoon and this morning, I put some final touches on the cob walls, leveling them in preparation for the soon-coming reciprocal roof. After I smoothed out some of the last cobs, I took a minute as I stood on the lean-to trestle, just staring down at the walls which now easily tower over my head, and I wondered in amazement.
It has been quite a journey to this point, moving over 40 tons of material. That’s a lot of earth. More specifically, it’s been 194.5 batches of cob so far. All this over 57 days (which were not all full work days, mind you.)
And it’s not over yet, but this massive portion of the process is, at least. Here are some photos of the structure.
Interior, looking southwest.The bed will be positioned along the far wall, under the window. The joists will support a 7.5′ wide, 22″ deep storage shelf.
The north wall interior, with nooks and a shelf at the foot of the (future) bed. The rocket stove will be to the left of the window. Exterior backside, looking southwest.
Entryway with storage nooks. A gigantic corner bookshelf.
Happy.
Here’s a couple of photos of the 99% complete cob walls. I figure I’ll be able to finish them off tomorrow, perhaps Sunday if it takes a couple more batches than I expect. Reciprocal roof: here we come!
Also, in the top photo you might notice a post near the entryway. This black locust post will bear one of the reciprocal roof rafters, making for a nice little overhang near the entryway. Call it a really small porch, maybe, but this should provide some decent extra coverage from the elements.
With the help of my superstar work exchangers Dan and Danielle, the cob walls are nearly complete. Unfortunately, D&D departed today to begin their own pursuits, but I am hopeful that I’ll be able to complete cobbing by myself by the weekend. I suspect it will take 10 or so batches to level out the walls in preparation for the reciprocal roof – no problem! (My estimations are historically inaccurate, but I feel pretty confident about this one.)
It’s amazing how tall the west wall (see above) is/feels, compared to the rest of the house. A little bit of slope can go a long way.
Last night we had a third campfire in the house, and several folks have suggested leaving the house as is, without roof, because of the dramatic light cast by the fire on the walls. It’s quite a sight. Maybe I’ll have to design a retractable roof…
Hi there, I’m Ziggy. In 2008, I launched The Year of Mud while building my first natural home. This blog is a collection of personal stories and experiences building with clay, straw, and wood over the past 15+ years. A few of the things that get me fired up are natural plasters, timber framing, & Japanese architecture. Since 2012, we’ve been hosting Natural Building Workshops so you can learn essential skills to build your own natural home.
